Perceivable → Distinguishable → 1.4.3

1.4.3

Contrast (Minimum)

Level AAFully Automatable

WCAG Requirement

Text and images of text have a contrast ratio of at least 4.5:1. Large text (18pt or 14pt bold) requires 3:1.

Experience Builder Notes

EB theme colors often fail contrast checks. Light text on map overlays is a frequent issue. axe-core catches most of these.

Sufficient Techniques

  • ✓Use dark text on light backgrounds (or vice versa)
  • ✓Test all theme colors against background
  • ✓Ensure text overlaying maps has solid background

Common Failures in EB Apps

  • ✗White text on light-colored EB theme headers
  • ✗Gray placeholder text in search widgets
  • ✗Light text overlaying basemap imagery

Full specification: WCAG 2.1 — 1.4.3 Contrast (Minimum)

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